Measuring 31 mm across, the round Oyster case of this Datejust 31 is crafted in Everose Rolesor — Rolex's proprietary blend of Oystersteel and Everose gold. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date sits above the rosé dial, which features diamonds set in 18 kt gold settings. A solid case back, screw-down crown with Twinlock double waterproofness system, and water resistance to 100 metres / 330 feet round out the case construction.
Inside beats Rolex Caliber 2236, a perpetual, mechanical, self-winding movement with a precision rating of -2/+2 seconds per day after casing. The oscillator features a Syloxi hairspring in silicon with patented geometry and high-performance Paraflex shock absorbers. Bidirectional self-winding via the Perpetual rotor delivers a power reserve of approximately 55 hours, and the movement is COSC certified. Functions include center hour, minute, and seconds hands, instantaneous date with rapid setting, and stop-seconds for precise time setting.
The watch is worn on an Oyster bracelet in Everose Rolesor with three-piece solid links, secured by a folding Oysterclasp fitted with an Easylink 5 mm comfort extension link for adjustable wear.
